Common mechanisms in substance abuse.
D000818:Animals; D001519:Behavior; D001794:Blood Pressure; D003216:Conditioning, Operant; D003213:Conditioning, Psychological; D004777:Environment; D006801:Humans; D002679:Pan troglodytes; D010215:Papio / Q000502:physiology; D012054:Reinforcement, Psychology; D012646:Self Administration; D019966:Substance-Related Disorders / Q000523:psychology